[osg-users] How to reduce the cache size limit of OSG ?

[OpenSceneGraph Users]

Hi, 

I am using OSG to show captured point cloud at run time. The dimension of 
point cloud is 1920x1200. 

I keep capturing the point cloud from a 3D camera and display it with a 
osgViewer, but memory consumption  keeps growing until ~5GB. 

I know that OSG caches something to improve performance. But in my case, 
such an simple app consume a space like 5GB is not making sense, so I 
wonder how I could change the cache size to lower the memory usage. 

Thanks!

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